Question

A sphere and cone are of same radius and same heights.Find ratios of their curved surface areas

Answer 1

HEY MATE HERE IS YOUR ANSWER

$\rule {150}{5}$

We know that,

C. S. A of sphere :-
$\boxed = > 4\pi \: { r}^{2}$
C. S. A of cone :-
$\boxed = > \pi \: rl$

$\rule {137}{3}$

Ratio of their C. S. A

$\huge = > ratio = \frac{c.s.a \: of \: sphere}{c.s.a \: of \: cone}$

$\huge = > ratio = \frac{4\pi \: {r}^{2} }{\pi \: rl} =$


$\huge \bold {Ratio = 4r : L}$

$\rule {145}{10}$

Hope it will help you

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